So umm, my gauge messed up....the paper part of it came unglued or something, and is just floating around in there, so I can't tell what pressure I'm at.....the needle is in the right place though, so I can get a general idea.

Question is, how do I pop open the gauge top to get at the paper and glue it back on? I don't want to damage the gauge, but I'd like to not have to buy a new one...

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